Slides in this set

Slide 1

REDOX EQUATIONSWhat are they? How do we use oxidationstates?…read more

Slide 2

Remember! The rules of how to calculate oxidation states (if you haven't learnt this, see powerpoint `oxidation states') That oxidation is loss of electrons, and reduction is gain of electrons During each reaction, the overall oxidation states are 0…read more

Slide 3

Redox Reactions We need to know how to find out what elements have been oxidised and which ones have been reduced. There are a few steps for doing this:1. Find out and write down the oxidation states of all elements on both sides2. Observe which elements have changed oxidation state e.g -1 to -43. Work out whether they've been reduced or oxidised4. Remember that one element can be both reduced and oxidised in one reaction! This is called disproportionation5. Also remember that in a reaction, if something is oxidised, something also has to be reduced…read more

Slide 4

ExampleWrite in the oxidation statesSee which elements have been reduced and oxidised Disproportionatio n…read more